Subject: Is this a causal loop?

Posted by Della Robertson on 1/27/2004

Message:

I asked students to draw a reinforcing loop after going through some modules from the Waters Foundation and some Challenges from "Food Chain"
by HPS.

Here are two that puzzled me:

Books in library-->Books being brought in --> back to Books in library

Rainforest --> Bird Species --> back to rainforest

I'm also asking for key questions to help clarify. Barry Richmond spoke of stocks as nouns and flows as verbs which I find helpful. What is the link between the loop and the model?

Della Robertson

Follow Ups:

Is this a causal loop? - John Heinbokel 2/27/2004 
Is this a causal loop? - Richard Turnock 2/27/2004 
Is this a causal loop? - Steve Kipp 2/27/2004 
Is this a causal loop? - John Gunkler 3/9/2004
Is this a causal loop? - Steve Kipp 3/11/2004
Is this a causal loop? - John Heinbokel 2/27/2004